document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=161773>Question 161773</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Matthew is 3 times as old as Jenny. In 7 years, he will be twice as old as she will be then. How old is each now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #119226 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=119226\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Matthew is 3 times as old as Jenny. In 7 years, he will be twice as old as she<BR>\n" );
document.write( " will be then. How old is each now?<BR>\n" );
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document.write( "Let M = Matthew's age now<BR>\n" );
document.write( "Let J = Jenny's age now<BR>\n" );
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document.write( "Their ages in 7 years:<BR>\n" );
document.write( "(M+7) and (J+7)<BR>\n" );
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document.write( "Write an equation for each statement:<BR>\n" );
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document.write( "\"Matthew is 3 times as old as Jenny.\"<BR>\n" );
document.write( "M = 3J<BR>\n" );
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document.write( " In 7 years, he will be twice as old as she will be then.\"<BR>\n" );
document.write( "(M+7) = 2(J+7)<BR>\n" );
document.write( "Simplify equation<BR>\n" );
document.write( "M + 7 = 2J + 14<BR>\n" );
document.write( "M = 2J + 14 - 7<BR>\n" );
document.write( "M = 2J + 7<BR>\n" );
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document.write( " How old is each now?<BR>\n" );
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document.write( "From the 1st equation; substitute 3J for M in the above equation<BR>\n" );
document.write( "3J = 2J + 7<BR>\n" );
document.write( "3J - 2J = 7<BR>\n" );
document.write( "J = 7 yrs is Jenny's age now<BR>\n" );
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document.write( "Then from the 1st equation:<BR>\n" );
document.write( "M = 3(7)<BR>\n" );
document.write( "M = 21 yrs is Matthew's age now<BR>\n" );
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document.write( "Check solution in the statement:<BR>\n" );
document.write( "\"In 7 years, he will be twice as old as she will be then.\"<BR>\n" );
document.write( "21 + 7 = 2(7+7)<BR>\n" );
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document.write( "Was this understandable? Did it make sense to you? <BR>\n" );
document.write( " </SPAN>\n" );
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